Although a seemingly innocuous post, Ariana’s fans noticed an emoji of the Golden Gate Bridge – which she’s previously used when talking about new music.

And with new album Sweetener due for release next month, fans have been theorising about a possible collaboration.

“Ariana has been going to the studio lately…. ariana is thanking madonna for something they both know….. according to my calculations ariana and madonna collaborated and couldn’t be happier for her (i was hacked if they didn’t)”, one wrote on Twitter.